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(Model.)

J. A. KIRBY.

OAR DOOR SEAL LOOK. NO. 322,830. Patented July 21, 1885.

UNITED TATns ATENT Brion.

JAMES A. KIBBY, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO FRANK P. PURTELL, OF SAME PLACE.

CAR-DOOR SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 322,830, dated July 21, 1885.

Application lcd March 16, 1885.

(Model.)

To a/ZZ whom/ it may cri/werft:

Be it known that I, J AMES A. KIRBY, a citizen of the United States, residing at Chicago, Illinois, have invented. certain new and useful Improvementsin Car-Door Seal-Locks,

of which the following is a specification.

The object of my invention is to make a seal-lock for the doors of cars and similar vehicles which shall be simple in construction, economical of manufacture, durable in use, and capable of being repeatedly used as often as may be required during the life of the car; and the invention consists in the features and details of construction hereinafter described.

In the drawings, Figure l shows the door of a ear with the seal-lock applied and in place as it will appear in use. Fig. 2 is a longitudinal vertical section of the lock When locked. Fig. 3 is a longitudinal vertical section of the lock when unlocked. Fig. 4 is a perspective View of the bottom portion of the lock. Fig. 5 is a perspective view of a piece to which the chain is attached at one end and the locking hook or loop at the other. Fig. Gis a perspective view of the upper piece of the lock, and Fig. 7 is a perspective view of the piece which locks the lock or fastens the loop or hook in place.

A represents the bottom or the lock; B, the top; C, the locking hook or loop; D, a sliding piece to which the chain is attached at the one end and the locking hook or loop at the other; E, the piece Which fastens or locks the piece D in place and stops its sliding when the seal is to be applied; F, the spring which raises and holds the piece E in place to lock the device; G, the glass seal which prevents the lock from being unlocked until the seal is broken; H, the piece which holds the seal in place when the lock is locked,- l, studs or pins on the bottom for holding the top in place; J, a cross-piece on the bottom, under which the free end of the loop or hook is drawn When the same is locked 5 K, a stud or projection on the piece E; L, a hole or recess in the top B of the lock, where such stud rests when the lock is locked; and M is a pin or stud on the sliding piece D, intended to hold the free end of the hoop or loop @,Which is provided With 5o a hole to lit over it when pressed down.

In making my improved car-door seal-lock I make a piece, A, for the bottom containing, preferably, a channel, as shown in Fig. 4.. I then make a piece, D, of a suitable length, Width, and height to lie in such channel, and which I have shown in detail in Fig. 5. This piece D may be provided with a loop at one end to permit a chain to be attached to it as a means forpermanently fastening the device to the car, and at the other end is riveted a 6o hook, hoop, or loop,O,With its upper end free and provided with a hole, as shown in Fig. 3. A pin or stud, M, is provided on the sliding piece D, as shown in Figs. 3 and 5, to permit the hole in the free end of the loop C to be pressed down upon the pin or stud M. The cross-piece H is also placed on this piece D, Which lies in the channel, and is provided With corners extending forward a short distance, as shown in Fig. 5. A recess is cut 7o into this sliding piece D to permit of a piece, E, having an upright stud or projection, K, on its upper side, as shown in Fig. 7, to be inserted. A spring, F, is placed under this piece E to push it up as far as the extension on its end will permit it. This sliding piece D,With its cross-piece H, its locking-piece E, its spring F, and locking-loop O, are now placed in position in or on the bottom A. Atop,'B, having its corners extended like the cross-piece H is 8O now placed in position, and the rivets I eX- tend up through holes provided in it, and are headed so as to securely fasten all the parts together. This top B is also provided with a hole, opening, or recess, L, (shown in Fig. 6,) to receive the stud or projection K on the piece E, as hereinafter described.

To lock the device, the free end ofthe loop C is pressed down over the pin or stud M made to receive it,and the sliding piece D is pushed .90 in until the projection or stud K on the piece E comes opposite the hole, recess, or opening L provided in the top B to receive it. As soon as the projection K coincides with this hole or opening L the spring F pushes the piece E up and pushes the projection K into the hole, opening, or recess L, as shown in Fig. 2. While this stud or projection K remains in the opening L the sliding piece D is locked so that it cannot be moved out or in IOO until a pressure has been applied on the piece E and the projection K forced down below the edge of the recess or opening L in the top B. In pushing the piece D in, the upper or free end of the locking hook or loop C, which has been pressed down over the stud or pin M on the sliding piece D, is pushed under the cross-piece J, as shown in Figs. 1 and 2, so that it cannot be either pulled out or lifted up until the sliding piece D has been moved out far enough to release it, which, as before said, cannot be done While the projection K on the piece E remains in the opening, hole,or

recess L provided for it in the top B.

To unlock the lock, the projection K on the piece E is pressed down by the finger or any other convenient means until its top will pass from the opening or recess L under the top B, when the sliding piece D maybe pulled out until the free end of the locking hoop or hook C is passed from under the crosspiece J,Which held it in place, when it may be lifted up, as shown in Fig. 3,and unhooked from the staple on the car and permit the door to be opened. To prevent this projection K on the pieceF from being pressed down and the lock unlocked by any one except the parties whoare authorized to unlock it, I use a small piece of glass or other brittle substance, G, which is placed in the top B before the lock is locked, so that two of its corners are held by the projections at the two corners in the top B. When the sliding pieceD is pushed in to lock the lock, the other two corners of the piece of glass G are caught by the projections at the corners of the piece H, so that the glass seal cannot be removed until the sliding piece D has been drawn out, when the lock is unlocked. This, as before said, cannot be done until the projection K on the piece E is pressed down by the finger or other means outy of the hole L. As long as the glass seal remains in place access to this stud K to press it down and unlock the lock is prevented. In order to reach this projection or stud K, and press it down so as to unlock the lock, it is necessary to break the glass or other substance composing the seal. Every time the lock is locked a new seal of glass or other covering must be used, and every timethe lock is unlocked-such seal must be broken. By putting letters or Jrigures on this piece of glass, as the initial letters of the railroad, or adopting other special marks, which each railroad can do for ltself, no person not connected with the railroad or in its employ can break the glass, unlock the seal so as to remove articles from the car, and insert another piece of glass and lock the seal without the fact of its having been done being at once apparent. This glass piece G is shown in perspective in Fig. l and in section in Fig. 2.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. A car-door seal-lock comprising a bottom A, a top, B, provided with a hole, recess, or opening, L, to receive a locking or fastening stud or pintle, K, and an intermediate sliding piece, D, carrying a piece, E, with said projecting stud or pintle K, a spring, F, to press said stud or pintle into the opening, hole or recess L in the top B, whereby the sliding piece D is fastened or locked in place and prevented from sliding, substantially as described.

2. A car-door -seal-lock comprising a bottom, A, atop, B, provided with ahole, recess, or opening, L, to receive a locking or fastening stud or pintle, K, and an intermediate sliding piece, D, carrying a piece, E, with a projecting stud or pintle, K, a spring, F, to press said stud or pintle into the opening L of the top B, whereby the sliding piece D is fastened or locked in place and prevented from sliding, and a glass or other brittle seal, G, covering the recess or opening in which the pintle or stud K is held to prevent access to the same without breaking such brittle seal, substantially as described.

3. A car-door seal-lock comprising a channel or U-shaped bottom, A, provided with a cross-piece, J, a top, B, riveted or fastened to such bottom and provided with a hole, opening, or recess, L, to receive a fastening stud or pintle, K, an intermediate -sliding piece, D, carrying a locking hoop, hook, or loop, C, at one end, and provided with a stud, M, a piece, E, with a projecting stud or pintle, K, and a spring, F, which presses or lifts the stud or pintle K into the opening or recess L in the top piece, B, whenever it becomes coincident with the same as the sliding piece D is moved out or in, whereby the sliding is arrested and the intermediate piece fixed until the stud is pressed out of the opening or recess in the top piece, substantially as described.

JAMES A. KIBBY.

Witnesses:

FRANK P. PURTELL, THoMAs A. BANNING.

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